// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 26.1.12
description: >
  Prevent extentions on target.
info: |
  26.1.12 Reflect.preventExtensions ( target )

  ...
  2. Return target.[[PreventExtensions]]().

  9.1.4 [[PreventExtensions]] ( )

  1. Set the value of the [[Extensible]] internal slot of O to false.
  ...
features: [Reflect]
---*/

function Test() {
    var o = {};
    Reflect.preventExtensions(o);
    assert.sameValue(Object.isExtensible(o), false, 'object is not extensible');

    assert.throws(TypeError, function() {
      Object.defineProperty(o, 'y', {});
    });
    assert.throws(TypeError, function() {
      Object.setPrototypeOf(o, Array.prototype);
    });

    Reflect.preventExtensions(o);
    assert.sameValue(
      Object.isExtensible(o), false,
      'object is still not extensible on exhausted calls'
    );
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
